code: def reset(self):
      print("========== reset ==========")
      if isinstance(self.trainer, TrainerRM):
          TaskManager(task_pool=self.task_pool).remove()
      exp = R.get_exp(experiment_name=self.experiment_name)
      for rid in exp.list_recorders():
          exp.delete_recorder(rid)
  
file_path: qlib/examples/model_rolling/task_manager_rolling.py
imports: from pprint import pprint
  import fire
  import qlib
  from qlib.constant import REG_CN
  from qlib.workflow import R
  from qlib.workflow.task.gen import RollingGen, task_generator
  from qlib.workflow.task.manage import TaskManager, run_task
  from qlib.workflow.task.collect import RecorderCollector
  from qlib.model.ens.group import RollingGroup
  from qlib.model.trainer import TrainerR, TrainerRM, task_train
  from qlib.tests.config import CSI100_RECORD_LGB_TASK_CONFIG, CSI100_RECORD_XGBOOST_TASK_CONFIG
label_desc: Use image node_id 2 for calling the RollingTaskExample obj's underlying member method code with example usage: obj.reset() without return types